Top Suppliers 15Edge Folded Ring - SBR Rubber surround used on loudspeaker-1inch-21inch – Nandi Yanlong

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We always continually offer you by far the most conscientious customer service, and the widest variety of designs and styles with finest materials. These attempts include the availability of customized designs with speed and dispatch for Speaker Replacement Diaphragm Kit Accessory , 2"Foam Surround Replacement , Edge Folded Ring , We have been one of your largest 100% manufacturers in China. A lot of large trading businesses import products and solutions from us, so we can easily give you the most beneficial price tag with the same quality for anyone who is interested in us.

Top Suppliers 15Edge Folded Ring - SBR Rubber surround used on loudspeaker-1inch-21inch – Nandi Yanlong Detail:

Excellent wear resistance, excllent heat aging resistance, good impact resistance.

Application	Car audio, Home audio, Subwoofer audio, Stage speakers, Wall speakers, Ceiling speakers, Outdoor speakers, Intelligent voice Bluetooth speakers, surround sound, artificial intelligence speakers, Self DIY audio design.
Material	SBR with another more than 10 types of additives to adjust the performance of the rubber
Hardness	40~85°
Thickness	0.10mm-15mm,accept customized
Surface treatment	Black light, Sanding, Biting lace, etc
Shape	Round, Oval, Rectangle,Accept foreign molds ,Support customize molds
Edge design	High pressure strip, Textured, Anti concave edge, Notching, Punching, etc
Color	As requested by clients
Feature	Anti-aging, Waterproof, Durable, Pliable
Certification	ISO9001,IATF16949,ISO14001
Capacity	52000pcs/month

SBR stands for styrene-butadiene rubber, is a synthetic rubber commonly produced worldwide. Styrene-butadiene or styrene-butadiene rubber (SBR) describe families of synthetic rubbers derived from styrene and butadiene.

A surround’s quality has enormous impact on the frequency response of a loudspeaker. The shore hardness directly affects the frequency of the speaker. Rubber surrounds also endure a long lifetime, almost 20~30years.

Styrene-butadiene rubber offers a range of advantages. It is resistant to water and glycol and very hardwearing. SBR offers good abrasion resistance, outstanding impact strength, good resilience and high tensile strength. SBR is the best synthetic elastomer to use in dynamic and abrasive conditions. The main applications of SBR include automotive parts and mechanical rubber goods. It also has heat aging resistance and delivers good compression set and water resistance. It is often used as a direct replacement for natural rubber, due to its similar characteristics but more economical price tag.

It is the addition of the organic compound styrene that contributes towards SBR’s advantageous strength, abrasion, wear and bonding properties, not to mention its affordability. Styrene-butadiene rubber generally offers superior heat-ageing properties and abrasion resistance than natural rubber. It is widely used in the production of tire tape, hose, wires, cables, medical instruments and various rubber products. It is the largest generic synthetic rubber variety and one of the earliest rubber varieties to achieve industrial production.

Guangdong Nandi Yanlong Technology Co., Ltd.
Low temperature tensile test of rubber materials SBR
Lab Date： 2022.05.11-05.13														Lab Model：ND158-399
No.	Model		Lab Conditions					Time	Lab Temp	Test result				Test Diff
2	SBR60	1	Vulcanization conditions:					12H	23℃	Peak value	Disp	Str	FO	Peak value	Disp	Str	FO
			Suface Temp	Mold Temp	Time	Pressure	Cap	12H	-40℃	30.75	39.74	2.05	32	-0.97	-1.42	-0.06	+2
			190/195℃	170/175℃	45S	8kg/C㎡	65T	24H	-40℃	34.72	45.7	2.31	31	+4.03	+5.96	+0.26	-1
		2	100 ° 2-hour twice vulcanization.					36H	-40℃	35.72	45.83	2.38	32	+1.00	+0.13	+0.07	+1
		3	Tension machine speed: A is 10 and B is 100					48H	-40℃	35.42	47.25	2.36	32	-0.30	+1.42	-0.02	0
		4	Tension plate:45mm10mm0.5mm					96H	-40℃	32.62	41.56	2.17	32	-2.80	-5.69	-0.19	0
		5	Lab temp: 25℃±2℃, humidity 65%±30%					Avg		33.846	44.016	2.38	31.8	0.19	0.08	0.03	0.4
Tabulator：Liu Li								Auditor： Zhiming Guo						Inspector：Vic Chiu
一、Note：
1.peak value:the biggest tension.
2.Strength：In the tensile test, the maximum tensile stress of the specimen until it breaks.
3.Displacement：Travel distance from static movement to fracture.

Payment method: Pay 30% for deposit,70% before shippment.

Accept US dollars, RMB, if other currencies, please consult before paying.

Term:EXW/FOB/CIF/CFR/DDP

Port: Shen Zhen/Guang Zhou/Ning Bo/Shang Hai

Production Lead Time: 1-1k, 2 days；1k-10k, 7days；above 10k，negotiated.

Package:Export Standard Unified Carton Packaging.

Small quantity is usually shipped by courier.

Bulk quantity ship by air , by sea,by railway

Special service: help find low freight and freight counter-offer

To create extra value for customers is our enterprise philosophy; buyer growing is our working chase for Wholesale Rubber surrounds, Rubber products, Cone paper used on all kinds of speakers. President of our company, with whole staff, welcomes all buyers to visit our company and inspect. Let us cooperate hand in hand to make a good future.

Our growth depends on the superior equipment, exceptional talents and continuously strengthened technology forces for Wholesale products which will supply to all over the world. Upon today, we have customers from all over the world. The mission of our company is to provide the highest quality products with best price. We are looking forward to doing business with you!

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Our solutions are widely recognized and trusted by consumers and will meet up with constantly developing financial and social requires for Top Suppliers 15Edge Folded Ring - SBR Rubber surround used on loudspeaker-1inch-21inch – Nandi Yanlong , The product will supply to all over the world, such as: Armenia, Holland, Malaysia, They are sturdy modeling and promoting effectively all over the world. Never ever disappearing major functions within a quick time, it's a have to for you of fantastic good quality. Guided by the principle of Prudence, Efficiency, Union and Innovation. the corporation. ake an excellent efforts to expand its international trade, raise its organization. rofit and raise its export scale. We are confident that we are going to have a bright prospect and to be distributed all over the world in the years to come.

14"Edge Folded Ring